ETAG024 Draft 2006 January

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ETAG 024

Edition January 2006

GUIDELINE FOR EUROPEAN TECHNICAL APPROVAL

OF

CONCRETE FRAME BUILDING KITS

EOTA,KUNSTLAAN 40 AVENUE DES ARTS,

B - 1040 BRUSSELS

European Organisation for Technical Approvals

Europische Organisation fr Technische Zulassungen

Organisation Europenne pour lAgrment Technique


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TABLE OF CONTENTS

FOREWORD

Background to the subject

Reference documents

SECTION ONE: INTRODUCTION

1 PRELIMINARIES

1.1 LEGAL BASIS (to be finally written by EOTA Secretary general)

1.2 STATUS OF ETAG

2 SCOPE

2.1 SCOPE

2.2 USE CATEGORIES, PRODUCT FAMILIES, KITS AND SYSTEMS

2.3 ASSUMPTIONS

3 TERMINOLOGY

3.1 COMMON TERMINOLOGY AND ABBREVIATIONS

3.2 SPECIFIC TERMINOLOGY

SECTION TWO: GUIDANCE FOR THE ASSESSMENT OF THEFITNESS FOR USE

GENERAL NOTES

(a) Applicability of the ETAG

(b) General layout of this section

(c) Levels or classes or minimum requirements, related to the essential requirements and tothe product performance (see ID clause 1.2 and EC Guidance Paper E)

(d) Working life (durability) and serviceability

(e) Fitness for the intended use


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4 REQUIREMENTS

4.1 MECHANICAL RESISTANCE AND STABILITY (ER 1)

4.2 SAFETY IN CASE OF FIRE (ER 2)

4.3 HYGIENE, HEALTH AND ENVIRONMENT (ER 3)

4.4 SAFETY IN USE (ER 4)

4.5 PROTECTION AGAINST NOISE (ER 5)

4.6 ENERGY ECONOMY AND HEAT RETENTION (ER 6)

5 METHODS OF VERIFICATION

5.1 MECHANICAL RESISTANCE AND STABILITY

5.2 SAFETY IN CASE OF FIRE

5.3 HYGIENE, HEALTH AND ENVIRONMENT

5.4 SAFETY IN USE

5.5 PROTECTION AGAINST NOISE

5.6 ENERGY ECONOMY AND HEAT RETENTION

5.7 DURABILITY, SERVICEABILITY AND IDENTIFICATION

6 ASSESSING AND JUDGING THE FITNESS FOR USE6.1 MECHANICAL RESISTANCE AND STABILITY

6.2 SAFETY IN CASE OF FIRE

6.3 HYGIENE, HEALTH AND ENVIRONMENT

6.4 SAFETY IN USE

6.5 PROTECTION AGAINST NOISE

6.6 ENERGY ECONOMY AND HEAT RETENTION

6.7 DURABILITY, SERVICEABILITY AND IDENTIFICATION


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7 ASSUMPTIONS AND RECOMMENDATIONS UNDER WHICH THEFITNESS FOR USE

OF THE CONCRETE FRAME BUILDING KIT IS ASSESSED

7.0 GENERAL

7.1 DESIGN OF THE WORKS

7.2 TRANSPORT, STORAGE

7.3 EXECUTION OF WORKS

7.4 MAINTENANCE AND REPAIR

SECTION THREE: ATTESTATION OF CONFORMITY (AC)

8 EVALUATION AND ATTESTATION OF CONFORMITY AND CEMARKING

8.1 SYSTEM OF ATTESTION OF CONFORMITY

8.2 TASKS AND RESPONSIBILITIES OF THE MANUFACTURER AND NOTIFIED BODIES

8.3 CE MARKING AND ACCOMPANYING INFORMATION

SECTION FOUR: ETA CONTENT

9 THE ETA CONTENT9.1 THE ETA CONTENT

9.2 ADDITIONAL INFORMATION

ANNEX A

COMMON TERMINOLOGY AND ABBREVIATIONS

1. Works and products

2 Performance

3 ETAG-Format

4 Working life

5 Conformity

6 Approval and approved bodies

Abbreviations

ANNEX B

LIST OF REFERENCE DOCUMENTS


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FOREWORD

Background to the subjectThis Guideline has been drawn up by EOTA Working Group 02.04/01a Concrete FrameBuilding Kits.

The Working Group consisted of members from 6 EEC-countries; Belgium, Finland, Germany,Ireland, Netherlands (convenorship) and United Kingdom. There were observers fromSlovakia and Slovenia.

The guideline sets out the performance requirements for concrete frame building kits used inbuilding construction, the verification methods used to examine the performance, theassessment methods used to evaluate the performance for the intended use, and thepresumed conditions for the design and installation of the kits in the works.

Concrete frame building kits according to this guideline are construction products defined inthe Mandate (ref Construct 01/504 as amended after written consultation) as follows:

The declared performance of the kit shall be compared with the relevant requirements in thebuilding regulations from case to case, taking into account the intended use of the kit inrelation to type of building, site, etc. An ETA is a favourable technical assessment of aconstruction product for an intended use, i.e. incorporated in the works. The ETA deals onlywith the product, and states classes or product characteristics to be used by the designer of the works.

Verification and assessment methods of loadbearing performance are based on the provisionsin Eurocode 2 and Eurocode 8.

Verification and assessment methods of performance in relation to fire is based on thepublication of European standards concerning classification for reaction to fire and resistanceto fire.

This mandate covers those industrially prepared kits, marketed as a building, that are made

of pre-designed and prefabricated components intended for production in series. Thismandate defines minimum requirements on the contents of such a kit. Partial kits fallingbelow these minimum requirements are outside the scope of this mandate and shall not beCE marked on the basis of the resulting ETAG. These minimum requirements comprise allof the following: the structural elements of the building , the connection of the building to thesubstructure and the specification of the essential components of the external envelopesuch as thermal insulation, cladding, roof covering, internal lining, windows and externaldoors in so far as they are necessary for the satisfaction of the Essential Requirementsapplied to the building.

The design process (including the approval of detailed plans, applications for planningpermission, building permits, ) must comply with the procedures foreseen in the Member States in which the building is to be built. This Mandate does not amend this process in anyway. The completed building (the works) must comply with the building regulations(regulations on works) applicable in the Member States in which the building is to beconstructed. The procedures foreseen in that Member State for demonstrating compliancewith the building regulations must also be followed by the entity held responsible for this act.This mandate does not amend this process in any way.

Although some components may be prepared in different factories, only the final kit for delivery, and not the different components, can be CE marked as a whole, under theresponsibility of the ETA Holder.


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Verification of the performance of concrete frame building kits requires an assessment of many construction details, such as the performance of joints between prefabricated elementswith respect to air permeability and durability, the strength of lining materials with respect toimpact loads and safety in use, watertightness of internal wet areas, etc. Relevantstandardised verification methods may not always be available or judged to be necessarysince the performance of many construction details has been proven to be acceptable by

long-term experience from use in traditional designs. In accordance with the general advice inthe Format of Guidelines for ETAs it is recognised in this guideline that some productproperties can be assessed by a pass/fail approach on the basis of engineering judgementand experience from the use of well-known materials and designs.

Reference documentsReference documents are referred to within the body of the ETAG and are subject to thespecific conditions mentioned therein. ENVs and prENs are referred to within this ETAG.When ENVs or prENs are replaced, the latest version shall be used.

The list of reference documents (mentioning the year of issue) for this ETAG is given inannex B. When additional parts for this ETAG are written afterwards, they may comprisemodifications to the list of reference documents applicable to that part.

Updating conditionsThe edition of a reference document given in this list is that which has been adopted by EOTAfor its specific use.When a new edition becomes available, this supersedes the edition mentioned in the list onlywhen EOTA has verified or re-established (possibly with appropriate linkage) its compatibilitywith the guideline.

EOTA Technical Reports go into detail in some aspects and as such are not part of theETAG but express the common understanding of existing knowledge and experience of theEOTA-bodies at that moment. When knowledge and experience is developing, especiallythrough approval work, these reports can be amended and supplemented.

EOTA Comprehension Documents permanently take on board all useful information on thegeneral understanding of this ETAG as developed when delivering ETA's in consensus by theEOTA members. Readers and users of this ETAG are advised to check the current status of these documents with an EOTA member.

EOTA may need to make alterations/corrections to the ETAG during its life. These changeswill be incorporated into the official version on the EOTA website www.eota.be and the actionscatalogued and dated in the associated History File .

Readers and users of this ETAG are advised to check the current status of the content of thisdocument with that on the EOTA website. The front cover will indicate if and when amendmenthas taken place.


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SECTION ONE: INTRODUCTION1. PRELIMINARIES

1.1. LEGAL BASIS (to be finally written by EOTA Secretary general)

This ETA Guideline has been established in compliance with the provisions of the Council

Directive 89/106/EC and has been established taking into account the following steps:- the final mandate issued by the EC :03/02/2003- the final mandate issued by EFTA :03/02/2003- adoption of the Guideline by the Executive Commission of EOTA :November 2005- opinion of the Standing Committee for Construction :@@/@@/@@- endorsement by the EC

This document is published by the Member states in their official language or languagesaccording to art. 11/3 of the CPD. No existing ETA guideline is superseded.

1.2. STATUS OF ETAG

a. An ETA is one of the two types of technical specifications in the sense of the EC89/106 Construction Products Directive (89/106/EEC). This means that Member States shallpresume that the approved concrete frame building kits are fit for their intended use, i.e. theyenable works in which they are employed to satisfy the essential requirements during aneconomically reasonable working life, provided that:- the works are properly designed and built;- the conformity of the products with the ETA has been properly attested.

b. This ETAG is a basis for ETAs , i.e. a basis for technical assessment of the fitness for useof a product for an intended use. An ETAG is not itself a technical specification in the senseof the CPD.

This ETAG expresses the common understanding of the approval bodies, acting together within EOTA, as to the provisions of the Construction Products Directive 89/106 and of theInterpretative Documents, in relation to the concrete frame building kits and uses concerned,and is written within the framework of a mandate given by the Commission and the EFTAsecretariat, after consulting the Standing Committee for Construction.

c. When accepted by the European Commission after consultation with the StandingCommittee for Construction this ETAG is binding for the issuing of ETAs for concrete framebuilding kits for the defined intended uses.

The application and satisfaction of the provisions of an ETAG (examinations, tests andevaluation methods) leads to an ETA and a presumption of fitness of a concrete framebuilding kit for the defined use only through an evaluation an approval process and decision,followed by the corresponding attestation of conformity. This distinguishes an ETAG from aharmonised European standard which is the direct basis for attestation of conformity.

Where appropriate, concrete frame building kits which are outside of the precise scope of thisETAG may be considered through the approval procedure without guidelines according to art.9.2 of the CPD.

The requirements in this ETAG are set out in terms of objectives and of relevant actions to betaken into account. It specifies values and characteristics, the conformity with which gives thepresumptions that the requirements set out are satisfied, wherever the state of art permits andafter having been confirmed as appropriate for the particular product by the ETA.

This guideline indicates alternative possibilities for the demonstration of the satisfaction of therequirement.


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2. SCOPE

2.1. SCOPE

This guideline covers those industrially prepared concrete frame kits, marketed as a building,that are made of pre-designed and prefabricated components intended for production inseries.

The components in a kit may be manufactured as precast concrete members (suchcomponents should be in accordance with the relevant EN) or structural frames or ascompletely prefabricated building elements (excluding volumetric units/3-dimensional and coldstorage building kits). The content of the kit is dominately of concrete structural componentsbut may include non-concrete structural components. A kit may comprise only the loadbearing components of a structure. In such cases any restrictions in methods and locations of the connections of the external envelope, the ground floor and roof needs to be identified andbe part of the ETA.

Concrete members may be manufactured of any type of concrete without any restriction onthe material used for reinforcement.

The minimum content of the kit to be assessed shall include the following, as far as isnecessary for the satisfaction of the Essential Requirements applied to the building:the structural components of the building (walls, columns, beams, floors, roofs), theconnection of the building to the substructure and the specification of the essentialcomponents of the external envelope such as thermal insulation, cladding, roof covering,internal lining, windows and external doors (see note).

The kits are assembled according to pre-designed technical solutions for joints between thestructural components and construction details.

Products like the external envelope as thermal insulation, cladding, roof covering, internallining, internal partitions, windows and doors, stairs, surface coverings etc. may be part of theconcrete frame kit. Service installations and complementary structures (including foundation

or substructure) are not covered by this ETA Guideline.

Partial kits which do not meet all the conditions set out above are outside this scope, and shallnot be CE-marked on the basis of an ETA based on this Guideline.

Although some components may be prepared in different factories, only the final kit for delivery, and not the different components, can be CE marked as a whole, under theresponsibility of the ETA holder.

Note

The external envelope, the ground floor and the roof do not have to be part of the kit. Thismeans that only the loadbearing structure of a building consisting of walls, columns, beamsand/or floors can also be a kit.

2.2. USE CATEGORIES, PRODUCT FAMILIES, KITS AND SYSTEMS

The product performance of concrete frame building kits in relation to the EssentialRequirements (ER) will normally be required to correspond with national regulatoryrequirements for the works relevant to the intended use of the product in, for example,dwellings, office buildings, schools, hospital and medical buildings, dormitories 1. Theserequirements will vary between the member states, and the product performance shall beexpressed in numerical terms.

1 List not exhaustive.

2.3. ASSUMPTIONS


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The state of the art does not enable the development, within a reasonable time, of full anddetailed verification methods and corresponding technical criteria/guidance for acceptance for some particular aspects and products. This ETAG contains assumptions taking account of thestate of art and makes provisions for appropriate, additional case by case approaches whenexamining ETA-applications, within the general framework of the ETAG and under the CPDconsensus procedure between EOTA members.

The guidance remains valid for other cases which do not deviate significantly. The generalapproach of the ETAG remains valid, but the provisions then need to be used case by case inan appropriate way. This use of the ETAG is the responsibility of the ETA-body which receivesthe special application, and subject to consensus within EOTA. Experience in this respect iscollected, after endorsement in EOTA-TB, in the ETAG-Format-Comprehension document.


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3. TERMINOLOGY

3.1. COMMON TERMINOLOGY AND ABBREVIATIONS

See Annex A.

3.2. SPECIFIC TERMINOLOGY

In this paragraph the specific terminology used in this ETAG is given in alphabetical order.These terminology is additional to the terminology used and defined in the Europeanstandards to which is referred in this ETAG.

Concrete frame building:Building of which the structure is mainly made of structural concrete components such aswalls, columns, beams, floors and roofs.

Design climatic conditions :Outdoor and indoor air temperature and moisture levels, snow loads, wind speed levels, etc,which may be stated in national building regulations or in other specifications to be used for design.

Integrated components:Components such as windows, non-load bearing elements for external envelope, doors,conduits, etc which are built into the main building parts.

Internal partitions:Partitions according to ETAG 003.

Joint/Connection : Junction between two materials, components, elements or parts of a building.

Main building parts :Main construction parts of a building like walls, floors and roof.

National Application Document:Supplementary document to a structural Eurocode published as European prestandard (ENV),with rules for the national application of the Eurocode. This includes boxed values andreferences to national standards which may be applied together with the provisions in theEurocode.

Nationally Determined Parameter (NDP) A National choice left open in a EN Eurocode about values (where symbols are given in theEN Eurocodes), classes or alternative procedures permitted within the EN Eurocodes.

Pre-designed:Pre-determined technical solutions.

Production in series:Production of building kits on the basis of the same materials, structural design andconstruction details. The buildings and components do not have to be exactly of the same sizeor shape.

Production unit:Production line or facility where the concrete frame kit is manufactured and/or processed.

Separating walls and floors:Walls and floors where national regulations can require sound insulation, fire resistanceperformance, etc.

Supporting documents:Documents included in the formal part of the approval, but where the content is not included inthe ETA-document itself. The valid version of a supporting document is the last updatedversion filed by the approval body.


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Suspended floors:Floor structures with a free span between supports.

StructureLoad-bearing construction, i.e. organised assembly of connected parts designed to providemechanical resistance and stability to the works (ID 1, clause 2.1.1).

Structural material Material or constituent product with properties which enter into structural calculations or otherwise relate to the mechanical resistance and stability of works and parts thereof, and/or to their fire resistance, including aspects of durability and serviceability .

Structural component Load-bearing part of Works designed to provide mechanical resistance and stability to theworks and/or fire resistance, including aspects of durability and serviceability, (ID 1, clause2.1.1).

Two-stage principle:Design principle for claddings, joints, etc in the exterior envelope. An outer layer serves toprotect an inner layer from direct driving rain and sun radiation. The space between the layersis ventilated and drained.

Wet area surface:Floors and wall areas in bathrooms and other wet rooms where the surface may be exposedto water spray from showers, etc, and where the manufacturer declares the surfaces to bewatertight.


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SECTION TWO: GUIDANCE FOR THE ASSESSMENT OF THE FITNESS FOR USE

GENERAL NOTES

(a) Applicability of the ETAG

This ETAG provides guidance on the assessment of a family of concrete frame building kitsand their intended uses. It is the manufacturer or producer who defines the family of kits for which he is seeking an ETA and how it is to be used in the works, and consequently the scaleof the assessment.

It is therefore possible that for some concrete frame building kits, which are fairlyconventional, only some of the tests and corresponding criteria are necessary to establishfitness for use. In other cases, e.g. special or innovative kits or materials, or where there is arange of uses, the whole range of tests and assessment may be applicable.

(b) General layout of this section

The assessment of fitness of concrete frame building kits with regard to their fitness for intended use in construction works is a process with three main steps: Chapter 4 clarifies the specific requirements for the works relevant to the concrete

frame building kits and uses concerned, beginning with the Essential Requirements for works (CPD art. 11.2) and then listing the corresponding relevant characteristics of theconcrete frame building kits.

Chapter 5 extends the list in chapter 4 into more precise definitions and the methodsavailable to verify product characteristics and to indicate how the requirements and therelevant product characteristics are described. This is done by test procedures, methodsof calculation and other appropriate methods.

Chapter 6 provides guidance on the assessing and judging methods to confirm fitnessfor the intended use of the concrete frame building kits.

Chapter 7, assumptions and recommendations are only relevant in as far as they concernthe basis upon which the assessment of the concrete frame building kits is madeconcerning their fitness for the intended use.

(c) Levels or classes or minimum requirements, related to the essential requirementsand to the product performance (see ID clause 1.2 and EC Guidance Paper E)

According to the CPD Classes in this ETAG refer only to mandatory levels or classes laiddown in the EC-mandate.

This ETAG indicates however the compulsory way of expressing relevant performancecharacteristics for concrete frame building kits. If, for some uses at least one Member statehas no regulations, a manufacturer always has the right to opt out one or more of them, inwhich case the ETA will state no performance determined against that aspect, except for those properties for which, when no determination has been made, the concrete frame

building kit does not any longer fall under the scope of the ETAG; such cases shall beindicated in the ETAG.

(d) Working life (durability) and serviceability

The provisions, test and assessment methods in this guideline or referred to, have beenwritten, based upon the assumed intended working life of the concrete frame building kit for the intended use of 50 years for the loadbearing structure and for non-accessible componentsand materials, and 25 years for repairable or replaceable components and materials likecladdings, roofing materials, exterior trims, and integrated components like windows anddoors, provided that the kit is subject to appropriate use and maintenance (see chapter 7).The use of components and materials with shorter intended working life shall be clearly statedin the ETA. These provisions are based upon the current state of art and the available

knowledge and experience.An assumed intended working life means that it is expected that, when an assessmentfollowing the ETAG-provisions is made, and this working life has elapsed, the real working life


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may be, in normal use conditions, considerably longer without major degradation affecting theessential requirements.

The indications given as to the working life of a concrete frame building kit can not beinterpreted as a guarantee given by the producer or the approval body. They should only beregarded as a means for the specifiers to choose the appropriate criteria for concrete framebuilding kits in relation to the expected, economically reasonable working life of the works

(based upon ID. Par. 5.2.2).

(e) Fitness for the intended use

According to the CPD it has to be understood that within the terms of this ETAG, productsshall have such characteristics that the works in which they are to be incorporated,assembled, applied or installed, can, if properly designed and built, satisfy the EssentialRequirements (CPD, art. 2.1).

Hence, the concrete frame building kits shall be suitable for use in construction works, inwhich (as a whole and in their separate parts) they are fit for their intended use, account beingtaken of economy, and in order to satisfy the essential requirements. Such requirements shall,subject to normal maintenance, be satisfied for an economically reasonable working life. Therequirements generally concern actions which are foreseeable (CPD Annex 1, preamble).


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4. REQUIREMENTS

This chapter sets out the aspects of performance to be examined in order to satisfy therelevant Essential Requirements, by: expressing in more detail, within the scope of the ETAG, the relevant Essential

Requirements of the CPD in the Interpretative Documents and in the mandate, for worksor parts of the works, taking into account the actions to be considered, as well as theexpected durability and serviceability of the works.

applying them to the scope of the ETAG (product and where appropriate its constituents,components and intended uses), and providing a list of relevant product characteristicsand other applicable properties.

When a product characteristic or other applicable property is specific to one of the EssentialRequirements, it is dealt with in the appropriate place. If, however, the characteristic or property is relevant to more than one Essential Requirement, it is addressed under the mostimportant one with cross reference to the other(s). This is especially important where amanufacturer claims No performance determined for a characteristic or property under oneEssential Requirement and it is critical for the assessing and judging under another EssentialRequirement. Similarly, characteristics or properties which have a bearing on durabilityassessments may be dealt with under ER 1 to ER 6, with reference under 4.7. Where there isa characteristic which only relates to durability, this is dealt with in 4.7.

This chapter also takes into account further requirements, if any (e.g. resulting from other ECDirectives), and identifies aspects of serviceability including specifying characteristics neededto identify the products (cfr. ETA-format par. II.2).

Table 1 on the next page shows the links between the Essential Requirements in the ECConstruction Products Directive (CPD), the relevant paragraphs of the correspondingInterpretative Documents (ID) to the CPD, and the related requirements and productperformances in this ETA Guideline.


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Table 1 Links between the ER, relevant paragraphs of the ID and requirement and productperformances in this ETAG

ERCorrespondingID paragraphfor works

CorrespondingID paragraph for product performance

Product performancecharacteristics from the Mandate,and ETA-Guideline paragraphs onproduct performance

1 2.1.3Collapse

2.1.4Inadmissible deformation

2.1.5Damage by an event to anextent disproportionate to theoriginal cause

3.2 (2)Permanent actionsVariable actionsAccidental actions

4.1 - Mechanical resistance andstability

2 4.2.2Load bearing capacity of theconstruction

4.2.3Limitation of generation andspread of fire and smoke withinthe construction works

4.2.4Limitation of spread of fire toneighbouring constructionworks

4.3.1.1Products subject to reaction tofire requirements

4.3.1.2Products for roofs subject tofire requirements

4.3.1.3Products subject to resistanceto fire requirements, load-bearing elements with or without separating function

4.2 - Safety in case of fire

4.2.1 Reaction to fire

4.2.2 Resistance to fire4.2.3 External fire performance (of theroof covering)

4.2.4 Fire compartmentation

3 3.3.1.1Air quality

3.3.1.2Dampness(indirect effect inducing mould-growth and increased depositof house dust mites)

3.3.1.1.3.2 aEmission and release of radiation and pollutants.Susceptibility to the growth of harmful micro-organisms

3.3.1.2.3.2 eBuilding products

4.3 - Hygiene, health and environment

4.3.1 Vapour permeability andmoisture resistance

4.3.2 Watertightness

4.3.3 Release of dangeroussubstances

4 3.3.1.2Falling after slipping.Falling due to changes in levelor sudden drops.

3.3.2.Behaviour on impact

3.3.1.3Falling after slippingFalling due to changes in levelor sudden drops.

3.3.2.3Mechanical resistance andstability

4.4 - Safety in use4.4.1 Slipperiness of floor finishes4.4.3 Falling due to changes in level or sudden drops.

4.4.2 Resistance to eccentric loadsincluding impact resistance.

5 2.3.1, 2.3.2, 2.3.3Protection against air-borneand impact noise betweenenclosed spaces and fromoutside of works

4.3.2Acoustic properties(according to 4.3.3)

4.5 - Protection against noise

4.5.1 Airborne sound insulation

4.5.2 Impact sound insulation

4.5.3 Sound absorption6 4.2

Energy consumption limitationTable 4.2Component characteristics

4.6 - Energy economy and heatretention

4.6.1 Thermal resistance

4.6.2 Air permeability

4.6.3 Thermal inertia


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4.1. MECHANICAL RESISTANCE AND STABILITY (ER 1)

The concrete frame building kit shall be capable of supporting the specified loadings withadequate safety against structural collapse, inadmissible deformations and where applicabledisproportionate collapse. The relevant actions to be considered normally comprise self-weight and imposed loads, wind loads, snow loads and, where appropriate, seismic loads.

4.2. SAFETY IN CASE OF FIRE (ER 2)The Essential Requirement laid down in the Council Directive 89/106/EEC is as follows:

The construction works shall be designed and built in such a way that in the event of anoutbreak of fire:1. the load bearing capacity of the construction can be assumed for a specific period of time;2. the generation and spread of fire and smoke within the works are limited;3. the spread of fire to neighbouring construction works is limited;4. occupants can leave the works or be rescued by other means;5. the safety of rescue teams is taken into consideration.

The following aspects of performance are relevant to the Essential Requirements for concreteframe building kits:

4.2.1. Reaction to fireThe reaction to fire performance of the individual kit components shall be in accordance withlaws, regulations and administrative provisions applicable to these individual kit componentsof the concrete frame building kit in its intended end use application. This performance shallbe expressed in the form of a classification specified in accordance with the relevant ECdecision and the appropriate CEN classification standards.

4.2.2. Resistance to fireThe resistance to fire performance of the assembled components of the concrete framebuilding kit (e.g. wall, floor, or roof) shall be in accordance with laws, regulations andadministrative provisions applicable to these assembled components in its intended and use

application. This performance shall be expressed in the form of a classification specified inaccordance with the relevant EC decision and the appropriate CEN classification standards.

4.2.3. External fire performance of the roof coveringThe external fire performance of the roof covering of the concrete frame building kits shall bein accordance with laws, regulations and administrative provisions applicable to the roof covering in its intended end use application. This performance shall be expressed in the formof a classification specified in accordance with the relevant EC decision and the appropriateCEN classification standards.

4.2.4. Fire compartmentation

The fire compartmentation of an assembled building shall be in accordance with laws,

regulations and administrative provisions applicable to the works where the building is to beconstructed.

4.3. HYGIENE, HEALTH AND ENVIRONMENT (ER 3)

4.3.1. Vapour permeability and moisture resistanceThe external envelope shall be designed to limit interstitial and surface condensation of moisture which may cause unacceptable growth of micro-organisms or affect the indoor climate.

4.3.2. Watertightness4.3.2.1 External envelopeThe external envelope shall prevent leakage of water from rain and melting snow into the

works.

4.3.2.2 Internal surfaces


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Internal wall and floor surfaces in bathrooms, toilets, etc claimed to be watertight by themanufacturer, shall be sufficiently tight to avoid water penetration to rooms below (short-termeffects) and to avoid moisture levels in materials and components which may lead tounacceptable growth of micro-organisms (long-term effects).

4.3.3. Release of dangerous substancesThe kit shall be such that, when installed according to the appropriate provisions of theMember States, it allows for the satisfaction of the ER3 of the CPD as expressed by nationalprovisions of the Member States and in particular does not cause harmful emissions of toxicgases, dangerous particles or radiation to the indoor environment nor contamination of theoutdoor environment (air, soil or water).


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4.4. SAFETY IN USE (ER 4)

4.4.1. Slipperiness of floor finishesTo limit accidental falls in buildings under normal use, finished floor surfaces shall not beunacceptably slippery and any unexpected change of slipperiness of the floor surfaces shallbe avoided.

4.4.2. Resistance to eccentric loads including impact resistanceThe concrete frame building kits shall have sufficient mechanical resistance and stability toensure that the safety of the occupants is not endangered (See also ER 1). This means thatthey shall have sufficient mechanical resistance and stability to withstand accidentally largestatic or dynamic loads, from the action of persons or objects, without full or partial collapsecausing dangerous (sharp or cutting) fragments, giving risk of falling through, particularly at achange of level, or endangering the safety of other people.

The loads may be in the form of: impacts resulting from a person falling against the wall; differential air pressure; a large number of people leaning or pressing against the wall at the same time (crowd

pressure); impacts resulting from the movement of heavy non-deformable objects such as pieces of

furniture or equipment; slamming of doors; heavy objects such as furniture and sanitary or heating equipment.

4.4.3. Falling due to changes in level or sudden dropsTo protect persons against falling appropriate guard-rails, balustrades, parapets should beused to cover accessible openings, appropriate stairways, fixed ladders, ramps should beused by changes in levels, appropriate safety catches and hinges should be used in windowsin upper storeys.

4.5. PROTECTION AGAINST NOISE (ER 5)

4.5.1. Airborne sound insulationWalls and floors shall provide the necessary airborne sound insulation applicable to theintended use of the building.

The external envelope shall provide the necessary sound insulation applicable to the intendeduse of the building concerning airborne noise from the outside (i.e. noise from industry, roadand air traffic, etc).

4.5.2. Impact sound insulationFloors shall provide the necessary impact sound insulation applicable to the intended use of the building.

4.5.3. Sound absorptionThe internal surfaces which are part of the kit shall provide the necessary sound absorptionapplicable to the intended use of the building.4.6. ENERGY ECONOMY AND HEAT RETENTION (ER 6)

4.6.1. Thermal resistanceThe external envelope shall provide the necessary thermal insulation which is applicable tothe intended use of the building. Thermal bridges which may cause uncomfortably lowtemperatures or water vapour condensation affecting hygiene, health and environment relatedto ER 3 shall be avoided.

4.6.2. Air permeabilityThe external envelope shall provide adequate airtightness to limit unnecessary energy loss,and to prevent cold draughts which may affect persons health in relation to ER 3.


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ETAG 2419

4.6.3. Thermal inertiaThermal inertia of the main building parts shall be known, where applicable, to assess theeffect on energy and heat retention.

4.7. ASPECTS OF DURABILITY, SERVICEABILITY AND IDENTIFICATION

4.7.1. Aspects of durabilityThe design of the concrete frame building kit shall ensure that deterioration of materials andcomponents during the assumed intended working life does not significantly affect theperformance of the kit in relation to fulfilling all the Essential Requirements 1 6. Deteriorationmay be caused by physical, biological and chemical agents.

4.7.2. Aspects of serviceabilityLoad bearing elements shall have sufficient stiffness to avoid unacceptable deflections anddynamic effects from normal use.

4.7.3. IdentificationThe materials used in the concrete frame building kit shall be identifiable in relation to those

properties which have an influence on the ability of the kit to fulfil the Essential Requirements.


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ETAG 2420

5. METHODS OF VERIFICATION

This chapter refers to the verification methods used to determine the various aspects of performance of the concrete frame kit in relation to the requirements for the works(calculations, tests, engineering knowledge, site experience etc.) as set out in chapter 4.For the acceptance criteria of data (e.g. test reports) see EOTA GUIDANCE DOCUMENT 004The Provisions of Data for Assessments Leading to ETA.

When EUROCODES are quoted in this ETAG as the methods for the verification of certainproduct characteristics, their application in this ETAG, as well as in the subsequent ETAsissued according to this ETAG, shall be in accordance with the principles laid down in the ECGuidance Paper L on the use of EUROCODES in harmonized European technicalspecifications (Methods 1, 2 or 3).

When the performance is assessed by reference to traditional methods, general experience,etc., the Technical Dossier of the ETA shall as far as possible refer to documents where suchmethods or experience are described.

Assessment of individual materials and components which are part of the kit and their compatibility in the works shall be carried out on the basis of the relevant product standards or approvals for these products, or as far as possible on the basis of technical specifications for products with the same intended use.

The relationship between the product performance characteristics and the correspondingparagraphs on verification methods are summarized in Table 2.

Table 2 - The relationship between the product performance characteristics and thecorresponding paragraphs on verification methods

ER ETAG paragraph onproduct performance

ETAG paragraph onverification method

1 4.1

Mechanical resistance andstability

5.1

Mechanical resistance andstability5.1.1Verification of structuralcapacities in general5.1.2Verification by calculation5.1.3Verification by assistedtesting

2 4.2Safety in case of fire

5.2Safety in case of fire

4.2.1Reaction to fire

5.2.1Reaction to fire

4.2.2Resistance to fire

5.2.2Resistance to fire

4.2.3External fire performanceof the roof covering

5.2.3External fire performanceof the roof covering

4.2.4Fire compartmentation

5.2.4Fire compartmentation


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ETAG 2421

ER ETAG paragraph onproduct performance

ETAG paragraph onverification method

3 4.3Hygiene, health and

environment

5.3Hygiene, health and

environment4.3.1Vapour permeability andmoisture resistance

5.3.1Vapour permeability andmoisture resistance

4.3.2Watertightness

5.3.2.1External envelope5.3.2.2Internal surfaces

4.3.3Release of dangeroussubstances

5.3.3Release of dangeroussubstances

4 4.4

Safety in use

5.4

Safety in use4.4.1Slipperiness of floors

5.4.1Slipperiness of floors

4.4.2Impact resistance

5.4.2Impact resistance

4.4.3Falling due to changes inlevel or sudden drops

5.4.3Falling due to changes inlevel or sudden drops

5 4.5Protection against noise

5.5Protection against noise

4.5.1Airborne sound insulation

5.5.1Airborne sound insulation

4.5.2Impact sound insulation

5.5.2Impact sound insulation

4.5.3Sound absorption

5.5.3Sound absorption

6 4.6Energy economy and heatretention

5.6Energy economy and heatretention

4.6.1Thermal resistance

5.6.1Thermal resistance

4.6.2Air permeability

5.6.2Air permeability

4.6.3Thermal inertia

5.6.3Thermal inertia


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ETAG 2422

5.1. MECHANICAL RESISTANCE AND STABILITY

5.1.1. Verification of structural capacities in generalThe structural components, the structure and the connections shall be verified in conformitywith the basis of design as given in EN 1990, e.g. according to the limit state design method.Consideration should be given to the relevant actions on structures as defined EN 1991. Theverification can normally be undertaken by structural calculations, supplemented if necessary

by testing in special cases, and shall when relevant include resistance againstdisproportionate collapse.

5.1.2. Verification by calculationCalculations should be made according to the relevant parts of EN 1992 to verify that theconcrete structural components and the concrete structure do not exceed the relevant ultimatestate.

If other structural materials are used for the elements, the relevant parts of the followingEurocodes should be used: EN 1993 for steel; EN 1994 for composite steel-concrete; EN 1995 for timber elements; ENV 1999 for aluminium.

Supplementary calculations which are relevant for the resistance against seismic actionsshould be done according to the provisions in ENV 1998, for various materials and elements.Other information on capacities against seismic actions based on the various boxed valuesgiven in National Application Documents or other national regulations may be undertaken as abasis for the specific structural design for each individual work.

5.1.3. Verification by calculation assisted by testingWhere calculation rules or material properties given in the ENs according to 5.1.2 are notsufficient or where economy may result from tests on prototypes, part of the design proceduremay be performed on the basis of tests. In general this design assisted by testing shall be

done according to EN 1990.The test methods for the determination of mechanical propertiesshall be specified. Furthermore the requirements for the factory production control and for theconformity attestation shall be specified. This shall be done in such a way that each declaredvalue or declared class corresponds to a defined statistical confidence (defined fractile andconfidence level) and can, for structural design of works, be taken as the characteristic valueor design value.

Test methods which are described in (h-)ENs, ETAGs or ISO-standards for materials andcomponents which are used/part of the kit may be used (e.g. EN 1168).

Because the current state of the art is that very few test methods exist, the followingprocedure enables the use of new test methods (see also 2.3): The approval body which needs to use a test method for issuing an ETA, makes a

proposal for this test method and sends it to the convenor of the WG of this ETAG; The test method is worked out/agreed by the WG; Reference to this test method shall be made in the (history file) of ETAG according to the

EOTA GUIDANCE DOCUMENT 005; The test method is part of the ETAG and the Approval Body may use the test method.


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ETAG 2423

5.2. SAFETY IN CASE OF FIRE

The fire performance of any product in terms of either reaction to fire, fire resistance and/or external fire performance, as considered in the following sections, does not only depend uponits intrinsic properties and the nature of the thermal attack, but also on its situation whenincorporated into works. The testing of products (or the assembled system of which theproduct forms part) shall be such as to simulate the product in its intended end use

application(s).5.2.1. Reaction to fireGenerally, one or more of the following options shall apply .Option 1: Products not covered by options 2 or 3.The individual kit components shall be tested, using the test method(s) relevant for thecorresponding reaction to fire class, in order to be classified according to EN 13501-1.Option 2: Products satisfying the requirements for the fire reaction class A1, withoutthe need for testingThe individual kit components are considered to satisfy the requirements for performanceClass A1 of the characteristic reaction to fire, in accordance with the provisions of ECDecision 96/603/EC (as amended) without the need for testing on the basis of its listing in thatDecision.

Option 3: Products classified without the need for further testing (CWFT)The individual kit components are considered to satisfy the requirements for performanceClass of the characteristic reaction to fire in accordance with the relevant EC Decision withoutthe need for testing on the basis of its conformity with the specification of the product detailedin that Decision and its intended end use application being covered by that Decision.

5.2.2. Resistance to fireThe assembled components of the concrete frame building kit (e.g. wall, floor or roof) shall betested, using the test method relevant for the corresponding fire resistance class, in order tobe classified according to the appropriate part of EN 13501. Structural resistance may bedetermined from the relevant Eurocode part 1-2.Fire resistance performance cannot be claimed for individual products alone, since it is acharacteristic of a complete component.

5.2.3. External fire performance of the roof coveringGenerally, one or more of the following shall apply.Option 1: Products not covered by options 2 or 3.The roof covering shall be tested using the test method relevant for the correspondingexternal fire performance roof class, in order to be classified according to EN 13501-5.Option 2: Products satisfying the requirements for the external fire performance, due tothe deemed to satisfy list.The roof covering is considered "deemed to satisfy" all the provisions for external fireperformance of all national regulations of the Member States without the need for testing onthe basis that it is included within the definitions given in Commission Decision 2000/553/ECand provided that any national provisions on the design and execution of works are fulfilled.

Option 3: Products classified without the need for further testing (CWFT)The roof covering is considered to satisfy the requirements for performance Class of thecharacteristic external fire performance in accordance with the relevant EC Decision withoutthe need for testing on the basis of its conformity with the specification of the product detailedin that Decision and its intended end use application being covered by that Decision.

5.2.4. Fire compartmentationFire compartmentation of a building is a function of its application and the regulations for Works in force in the Member State where the building is to be built (see boxed wording in theForeword to this ETAG). The ETA will give details of the reaction to fire and resistance to fireof elements of the kit, such as internal walls. It is for the designer of the Works to determinetheir suitability and their position for particular buildings.


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ETAG 2424

5.3. HYGIENE, HEALTH AND ENVIRONMENT

5.3.1. Vapour permeability and moisture resistanceAssessment shall be undertaken on the basis of calculations according to EN ISO 13788,taking into account the relevant design climatic conditions.

The risk of condensation can normally be verified on the basis of hygrothermal characteristics

of the products used in each component and the construction details.Water vapour resistance of the relevant layers should be based upon:- Design values given in EN 12524 or European technical specifications

or - Tests according to EN ISO 12572 or European technical specifications.

In addition, the design of joints and any fixings/services penetrating any vapour controlelement or membrane shall be assessed in relation to the risk of airborne moisture cominginto contact with cold surfaces within the construction.

For verification of condensation risks due to low surface temperatures or air leaks see 5.6.1and 5.6.2. Moisture resistance of materials in terms of durability is covered under 5.7.1.


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ETAG 2425

5.3.2. Watertightness5.3.2.1 External envelopeWater leakage resistance of the building envelope, including driving rain on facades andpossibly snow penetration, shall primarily be assessed by the approval body on the basis of the standard construction details for the kit, and by using the available technical knowledgeand experience from similar well-known technical solutions.

The assessment of resistance against the penetration of driving snow into the externalenvelope may normally be based upon design or engineering knowledge. The assessmentshall include the full external envelope, including joints between prefabricated components inthe kit and principal solutions for joints between the kit and the substructure.

If the resistance against weather influence cannot be assessed by the use of existingguidelines (e.g. an ETAG), because of unfamiliar solutions to the relevant construction details,the approval body may find it necessary to require testing of the external envelopeperformance. Laboratory tests may be carried out according to EN 1027, EN 12155, EN12865.

5.3.2.2 Internal surfacesThe performance of watertight membranes or surface layers in wet areas such as bathrooms,may be assessed on the basis of experience/technical knowledge. Alternatively, it may beverified by reference to conformity with relevant performance standards or ETAGs for theproducts involved, e.g. product standards for roofing membrane systems.For products with unknown performance, verification can be according to the Nordtestmethods NT BUILD 058, 230 and 448.

5.3.3. Release of dangerous substances5.3.3.1 Presence of dangerous substances in the kitThe applicant shall submit a written declaration stating whether or not the product/kit containsdangerous substances according to European and national regulations, when and whererelevant in the Member States of destination, and shall list these substances.

5.3.3.2 Compliance with the applicable regulationsIf the product/kit contains dangerous substances as declared above, the ETA will provide themethod(s) which has been used for demonstrating compliance with the applicable regulationsin the Member States of destination, according to the dated EU data-base (method(s) of content or release, as appropriate).

5.3.3.3 Application of the precautionary principleAn EOTA member has the possibility to provide to the other members, through the SecretaryGeneral, warning about substances which, according to Health authorities of its country, areconsidered to be dangerous under sound scientific evidence, but are not yet regulated.Complete references about this evidence will be provided.

This information once agreed upon, will be kept in an EOTA data base, and will be transferred

to the Commission services.

The information contained in this EOTA data base will also be communicated to any ETAapplicant.

On the basis of this information, a protocol of assessment of the product, regarding thissubstance, could be established on request of a manufacturer with the participation of theApproval Body which raised the issue.


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ETAG 2426

5.4. SAFETY IN USE

5.4.1. Slipperiness of floor finishesVerification of slip resistance of flooring materials shall be undertaken in accordance with therelevant EN-standards for the specified finished flooring products.

5.4.2. Resistance to eccentric loads including impact resistance

Mechanical resistance against dynamic loads shall primarily be assessed by the approvalbody on the basis of existing knowledge related to the intended use. Walls with well-knowninternal lining materials, such as standard gypsum boards, wood-based panel products andsolid timber boards with studs, should generally be accepted to have a satisfactory impactresistance for normal use in, for example, dwellings and office buildings.

When the performance of the building is not known to be acceptable, or a quantifiedperformance is to be declared due to national building regulations in some member states, theimpact resistance should be tested. Testing of walls is to be carried out in accordance withEOTA Technical Report No 001 : Determination of impact resistence of panels and panelsassemblies.

Floors and roofs are tested according to EN 1195.

For wood-based panels used as loadbearing sub-floor panels on joists and as roof sheathingthe impact resistance should be accepted as adequate when the panels conform to therequirements in EN 12871.

Where an approach is described in a relevant Eurocode, it will be acceptable to calculateimpact resistance.

5.4.3. Falling due to changes in level or sudden dropsIn the ETA the use category in relation to the mechanical resistance against dynamic loads of guard-rails, balustrades and parapets shall be given as meant in ETAG 003: 5.4.1.1Resistance of structural damage from soft body impact load 50 kg bag.

5.5. PROTECTION AGAINST NOISE

5.5.1. Airborne sound insulationThe airborne sound insulation performance of the main building parts of an assembled kitshall be verified by either laboratory or field tests according to the relevant parts of EN ISO140. The rating of airborne sound insulation shall be undertaken according to EN ISO 717.Values for airborne sound insulation in completed buildings, based on laboratory tests, can bedetermined according to EN 12354-1, -3, -4.Indicative field testing of an assembly within a manufacturers range may be possible, as partof the Approval process. However, National Regulations in some Member States may requirefield testing of the completed building in each case.

5.5.2. Impact sound insulationThe impact sound insulation performance of the floors of an assembled kit shall be verified byeither laboratory or field tests according to the relevant parts of EN ISO 140, and the rating of impact sound insulation shall be done according to EN ISO 717.Values for impact noise level in completed buildings, based on laboratory tests, shall bedetermined according to EN 12354-2.Indicative field testing of an assembly within a manufacturers range may be possible, as partof the Approval process. However, National Regulations in some Member States may requirefield testing of the completed building in each case.

5.5.3. Sound absorptionSound absorption is measured according to EN ISO 354.


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ETAG 2427

5.6. ENERGY ECONOMY AND HEAT RETENTION

5.6.1. Thermal resistanceThermal resistance (R-value) and the corresponding thermal transmittance (U-value) of themain building parts in a kit shall be calculated according to EN ISO 6946, using the designthermal conductivity values for materials according to EN 12524, relevant European product

standards, or conductivity determined according to EN ISO 10456. Alternatively the thermalresistance may be verified by testing according to EN ISO 8990.

Verification of thermal transmittance for windows, doors and shutters may be undertaken bycalculation according to EN ISO 10077-1,EN ISO 10077-2 or by testing according to relevantEN ISO-standards for these products.

If the design has technical solutions with special thermal bridges not covered by the ordinaryverification of the thermal resistance as mentioned above, the effect on the overall thermalresistance and the surface temperatures in relation to 4.3.1 shall be verified when theapproval body finds this necessary. E.g. the effect of moisture due to thermal bridges. Suchverification may be undertaken by calculations according to EN ISO 10211-1 and EN ISO10211-2, or by testing according to EN ISO 8990 or relevant test standards for specific

products.


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ETAG 2428

5.6.2. Air permeabilityThe assessment of air permeability should be undertaken both with regard to energy economy(unintended ventilation), cold draughts (see 4.6.2) and risks of water vapour condensationinside the construction (see 4.3.1). The assessment must be undertaken on the basis of theintended use of the concrete frame building kit, taking into account the internal and externaldesign climates (e.g. geographical areas).Assessment of the air permeability of the external envelope is normally undertaken by

judgement of the construction details, on the basis of the knowledge and experience fromtraditional technical solutions. The assessment shall include joints between components.

When the approval body finds it necessary, e.g. when non-traditional joints are applied, the air permeability shall be verified by testing. Tests may be carried out by pressurisation of completed buildings according to EN 13829, or by laboratory testing according to pr EN 1026,EN 12114 or other relevant test standards. The tests shall include long-term performancewhen relevant.

The assessment of air permeability should be undertaken both with regard to energy economy(unintended ventilation), cold draughts (see 4.6.2) and risks of water vapour condensationinside the construction (see 4.3.1). The assessment shall be undertaken on the basis of theintended use of the building kit, taking into account the internal and external design climates(e.g. geographical areas).

5.6.3. Thermal inertiaVerification of thermal inertia is undertaken on the basis of the following properties of the mainbuilding parts: the total mass per unit area, density and specific heat capacity of relevantmaterials and thermal resistance. Specific heat capacities are tabulated in EN 12524, andmaterial densities are shown in EN 1991-2-1.Alternatively, values measured in accordance with ISO 11357-4 or equivalent may be used.

5.7. DURABILITY, SERVICEABILITY AND IDENTIFICATION

5.7.1. Aspects of durability

The estimated working life of the various parts of the kit will normally have to be determined bythe approval body, on the basis of experience and general knowledge, and mainly byexamining the building details which are part of the kit.In so doing the approval body shall take into account the influence of climatic conditions whenassessing the estimated working life of the concrete frame building kit. The EC GuidancePaper F on Durability and the EOTA Guidance document 003 (Assessment of working life of products) may be consulted with regard to the use of relevant degradation factors and climaticsub-divisions of Europe.

When assessing the durability of materials and components in the kit it should be born in mindthat durability is normally best ensured by good design measures and good site practice.Excessive moisture content should primarily be prevented by adequate construction details.

The most important aspect related to the durability of concrete frame building kits is thecorrosion of the reinforcement. Exposure classes are given in EN 1992.

The durability of materials and components in the kit is sufficiently proved if thesematerials and components comply with the relevant EN-, ETAG- or ISO standards.

When a standard is used for calculations, the materials and components shall comply withthe requirements of the Eurocode and in particular with the material and componentsstandards named in the Eurocode.

5.7.2. Aspects of serviceabilityDeflections and dynamic effects related to the structural design of the loadbearing elementsshall be determined (serviceability limit state) by calculations or tests as in 5.1.

5.7.3. IdentificationAll components of the concrete frame building kit shall be identified, either by reference to:


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ETAG 2429

- Harmonised product standards;- European Technical Approvals, based on other ETA-Guidelines;- Non-harmonised European product standards;- Non-harmonised International product standards;- Descriptive identification, identifying the products by their composing materials and their

function.

In any case, dimensions (length, width, thickness), geometry (squareness, flatness, ),significant properties (mechanical, physical, chemical, ) and their tolerances shall be given.In those cases where the above listed product specifications do not specify test methods for identification, test methods used shall be based on European standards (CEN), Internationalstandards (ISO), EOTA Technical Reports, UEAtc Guidelines, Nordtest standards or RILEMtest methods.Ultimately, a formulation, a ETA applicants specific reference or a similar unique specificationcan also be accepted.


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ETAG 2430

6. ASSESSING AND JUDGING THE FITNESS FOR USE

This chapter details the performance requirements to be met (chapter 4) in precise andmeasurable (as far as possible and proportional to the importance of the risk) or qualitativeterms, related to the product and its intended use, using the outcome of the verificationmethods (chapter 5).

The performance characteristics are summarised in Table 3.

Where at least one Member State has no regulated requirement against a performancecharacteristic, or some aspect of that characteristic, then the No performance Determined(NPD) option is available, exept for ER1. ER1 should always be evaluated.The ETA applicantand the Approval Body can agree where this option applies, taking account of the intendedmarket. The ability of the Approval Body to determine performance in relation to regulatedcharacteristics will be limited where the Unit(s) under assessment are incomplete (See 2.1Scope). This should be noted in the ETA but does not necessarily allow the use of the NPDoption.

Table 3 - The type and options of product performance to be declaredER ETAG paragraph on product

performanceType of performance declaration in ETA's

1 6.1 Mechanical Resistanceand Stability

- Characteristic values for materials or - Characteristic values for components- Calculation methods

2 6.2.1 Reaction to fire - Classification according to Euroclassesin EN 13501-1

6.2.2 Resistance to fire - Classification according to EN 13501-2- Calculation methods

6.2.3 External fireperformance of roof covering

- Classification according to EN 13501-5

6.2.4 Fire compartmentation - Classification statement for relevantelements3 6.3.1 Vapour permeability and

moisture resistance- Assessed to be acceptable in relation tothe

intended use of the building and anylimitations regarding climatic zones

6.3.2 Watertightness6.3.2.1 External envelope - Assessed to be acceptable in relation to

any limitations regarding climatic zones6.3.2.2 Internal surfaces - Assessed to be acceptable

6.3.3 Release of dangeroussubstances

- Declaration of dangerous substancesdefined in Council Directive 76/769/EEC,and possible measures to be taken

4 6.4.1 Slipperiness of floors - Assessed to be acceptableor - Slip resistance of flooring

6.4.2 Resistance to horizontaland ecccentric load

- Assessed to be acceptable by judgementor - measured horizontal soft and hard body

impact resistance- measured eccentric vertical load resistance

6.4.3 Falling due to changesin level or sudden drops

- Assessed to be acceptable by judgementor - measured horizontal hard body

impact resistance of guard rails,balustrades and parapets


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ETAG 2431

ER ETAG paragraph on productperformance

Type of performance declaration in ETAs

5 6.5.1 Airborne soundinsulation

- Weighted apparent sound reduction indexfor separating walls and floors

- Weighted apparent sound reduction indexfor all other walls and floors

- Weighted apparent sound reduction indexfor external walls and roof

6.5.2 Impact sound insulation - Weighted normalised impact soundpressure level for separating floors

- Weighted normalised impact soundpressure level for all other floors

6.5.3 Sound absorption - Sound absorption coefficient of internalsurfaces

6 6.6.1 Thermal resistance - Total thermal resistance R t and correctedthermal transmittance U c for:

Exterior wallsWindows and external doorsFloorsInternal wallsRoof

6.6.2 Air permeability - Measured air leakage of type testedbuildings and/or components

or - Assessed to be acceptable in relation to

energy loss, cold draughts (ER3),interstitial

or surface condensation (ER3), andintended use

6.6.3 Thermal inertia - Information on relevant data

No performance determined is not an option for the following6.7.1 Aspects of durability - Assessed to be acceptable in relation to

intended use and the effect onperformance

related to ER1 ER6- Possible conditions regarding maintenance

6.7.2 Aspects of serviceability - Calculation methods6.7.3 Identification - Values of appropriate identification

parameters


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ETAG 2432

6.1. MECHANICAL RESISTANCE AND STABILITY

The properties of structural materials and components related to "mechanical resistance andstability" should be specified in the ETA as simply as possible with regard to the needs of fulfilling the National Provisions.

This may be done by expressing the properties in terms of:

characteristic strength and other properties such as dimensions from which the load-bearing capacities of the assembled system installed in the works, taking into account theNational Provisions, can be calculated, or

design values provided that the NDPs applicable to works have been taken into accountby appropriate levels and classes, which correspond to sets of NDPs.

For further information: see the Guidance Paper L Application and use of Eurocodes.

The ETA will state the calculation methods to be used for each individual building project inrelation to the stability of the structure, taking into account the National Provisions.

6.2. SAFETY IN CASE OF FIRE

6.2.1. Reaction to fire

The individual kit components shall be classified according to EN 13501-1.6.2.2. Resistance to fireThe concrete frame building kit shall be classified according to the appropriate Part of EN13501.

6.2.3. External fire performance of the roof coveringThe roof covering shall be classified according to EN 13501-5.

6.2.4. Fire compartmentationThe ETA shall give details of the classification of elements, such as internal walls, so that thedesigner of the works can make use of this data when seeking to meet the regulatory

requirements in force in the Member State in which the building is to be constructed.6.3. HYGIENE, HEALTH AND ENVIRONMENT

6.3.1. Vapour permeability and moisture resistanceThe product specifications shall be examined and performance, in respect of exposure tomoisture,assessed on the basis of known material properties, design details and the intended use.It shall be established that condensation in the structure as a result of water vapour diffusionwill not occur or will occur only to an extent where damage is not caused during thecondensation period and that the structure will dry out again during the evaporation period.

The assessment is to be undertaken with respect to both interstitial and internal surface

condensation.The performance of the kit is stated in the form of acceptable intended uses relevant to thedesign climatic conditions, e.g. types of buildings and geographical zones.

6.3.2. Watertightness6.3.2.1 External envelopeThe performance of the kit will normally have to be declared in qualitative terms in relation tothe intended use like potential climatic zones, and with respect to durability aspects (see ECGuidance Paper F on Durability and the Construction Products Directive), as well as to therequirements mentioned in 4.3.2. When a kit is assessed to be inadequate in certain regions(for example in areas with exceptional amounts of driving rain or potential snow penetration),the limitations on the intended use shall be clearly stated in the ETA.

In cases where tests have been performed, the test results shall be declared.

6.3.2.2 Internal surfaces


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ETAG 2433

It shall be clearly indicated in the ETA which parts of the kit are classified as watertight surfaceareas.

6.3.3. Release of dangerous substancesThe product/kit shall comply with all relevant European and national provisions applicable for the uses for which it is brought to the market. The attention of the applicant should be drawnto the fact that for other uses or other Member States of destination there may be other requirements which would have to be respected. For dangerous substances contained in theproduct but not covered by the ETA, the NPD option (no performance determined) isapplicable.

6.4. SAFETY IN USE

6.4.1. Slipperiness of floor finishesWhen this performance is determined the slip resistance of finished floorings shall be declaredaccording to the relevant standard for the specified flooring product.

6.4.2. Resistance to eccentric loads including impact resistanceImpact resistance can normally be declared as acceptable under defined conditions and not

be quantified. Any limitations on intended use shall be stated in the ETA.When wall structures have been tested according to EOTA TR: Determination of impactresistance, and/or floors and roof according to EN 1195, the determined impact resistanceshall be declared in the ETA.

The minimum accepted impact resistance should normally be 100 Nm for soft body impactwith the 50 kg bag and 10 Nm for hard body impact with the 1 kg steel ball, when the intendeduse is for residential housing, office buildings, etc. However, national building regulations insome member states require a minimum soft body impact resistance of 900 Nm for externalwalls.

Reference shall be made to Annex A of the EOTA Technical Report No 001 in order to

determine the suitability of internal and external walls, for particular applications, in relation totheir impact resistance.

6.4.3. Falling due to changes in level or sudden dropsIn the ETA the use category in relation to the mechanical resistance against dynamic loads of guard-rails, balustrades and parapets shall be given as meant in ETAG 003: 6.4.1.1Resistance of structural damage from soft body impact load 50 kg bag.

6.5. PROTECTION AGAINST NOISE

Sound insulation performance of building elements shall be declared in the ETA as estimatedvalues for airborne sound insulation and impact noise level to be expected in completedbuildings. The performance shall be specified with designations according to EN ISO 717, and

should preferably be specified as given below. Other designations for the sound insulationperformance mentioned in EN ISO 717 may be added in the approval, to agree with theverification methods according to national building regulations based on such designations.

6.5.1. Airborne sound insulationThe airborne sound insulation between rooms and of facades shall be declared in the ETA, asweighted apparent sound reduction index R' w, according to EN ISO 717-1.Other designations mentioned in EN ISO 717-1 may be added in the approval, to agree withthe verification methods according to national building regulations based on suchdesignations.

6.5.2. Impact sound insulationThe impact sound insulation for floors shall be declared in the ETA, as weighted normalisedimpact sound pressure level L' n w (band width 1/3 octave), according to EN ISO 717-2.Other designations mentioned in EN ISO 717-2 may be added in the approval, to agree withthe verification methods according to national building regulations based on suchdesignations.


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ETAG 2434

6.5.3. Sound absorptionThe sound absorption coefficient of internal surfaces is declared.


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ETAG 2435

6.6. ENERGY ECONOMY AND HEAT RETENTION

6.6.1. Thermal resistanceThermal resistance values for the main building elements (walls, floors, roofs)in the kit shall bedeclared as the total thermal resistance R t in mK/W, including the surface resistances. Thethermal resistance shall be an average value for the main building parts , including the effectof studs, joists, plates, etc based on an average length in relation to one m of the building

part. Thermal resistance of windows and doors in the external envelope which are included inthe kit shall be declared separately, also in the term mK/W.

The corresponding thermal transmittance shall be specified as the corrected thermaltransmittance U c = 1/R t + U, where the correction term U is calculated according toEN ISO 6946.

When significant thermal bridges are present, the thermal transmittance, in addition to thenormal thermal transmittance U c, shall be declared in units of W/m

2K. If relevant, the potentialsurface condensation risk due to these thermal bridges shall be stated in the ETA (see 4.3.1).

6.6.2. Air permeabilityQuantified national building regulations concerning air permeability are related to energyeconomy in the member states, although there may be no quantified requirements related tohealth and the effect on the indoor climate. Requirements on the overall air permeability arerelated to the completed building (works), and not to separate building parts.

Declaration of the degree of air permeability will normally have to be in qualitative terms, i.e.that a building based on the kit will result in adequate airtightness in relation to the intendeduse, incl. climatic zones, taking into account energy economy and heat retention, risk of colddraughts as mentioned in 4.6.2, and risk of condensation within the construction as mentionedin 4.3.1. When a kit is assessed to be inadequate in certain regions, the limitations on theintended use shall be clearly stated in the ETA.

6.6.3. Thermal inertia

The information on total mass per unit area of the main building parts, and on density, specificheat capacity and thermal resistance of relevant materials, shall be declared as a means for the designer to calculate the thermal inertia of the building in accordance with EN 832 (or prEN 13790).

6.7. DURABILITY, SERVICEABILITY AND IDENTIFICATION

6.7.1. Aspects of durabilityThe ETA shall declare that the durability of the kit is acceptable in relation to intended use andperformances related to Essential Requirements 1 to 6.Acceptable in the context of this ETAG means that, according to SECTION TWO, GENERALNOTES, (d) Working life (durability) and serviceability, the assumed intended working life of the concrete frame building kit for the intended use is 50 years for the loadbearing structure

and non-accessible components and materials. For repairable or replaceable components andmaterials this working life is assumed 25 years

When relevant in the ETA also shall declare: possible geographical limitations or climatic zones; possible conditions regarding maintenance.

When applicable for properties related to the Essential Requirements "mechanical resistanceand stability" or "resistance to fire" that have an influence on the durability of the works, theETA shall give the possibility for national choices by means of levels or classes according toGuidance Paper E.

6.7.2. Aspects of serviceabilityMaximum deflections at serviceability limit states, applied in the verification of structuralcapacities related to ER 1, shall be declared in the ETA, when this is relevant for theserviceability or to meet possible national regulations.


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ETAG 2436

When relevant, the deflections and other serviceability requirements shall be declared inaccordance with the rules given in the relevant Eurocode or in other cases, for example wherethere is no relevant European standard, values for deflection under design loads should berestricted to the following default values:- Floors and beams span/360 imposed load only- Floors and beams span/250 total service load- Lintels span/360 or 10 mm whichever is less

- Walls spanning between beam or columns span/360- Sway deformation height/300

The deflection criteria should not be exceeded during transportation or installation.

6.7.3. IdentificationThe appropriate identification parameters shall be given in the ETA. See also 9.1.


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ETAG 2437

7. ASSUMPTIONS AND RECOMMENDATIONS UNDER WHICH THE FITNESS FOR USE OF THE CONCRETE FRAME BUILDING KIT IS ASSESSED

7.1. GENERAL

This chapter sets out the assumptions and recommendations for design, installation andexecution, packaging, transport and storage, use, maintenance and repair under which theassessment of the fitness for use according to the ETAG can be made (only when necessaryand in so far as they have a bearing on the assessment or on the products).

7.2. DESIGN OF THE WORKS

7.2.1. Local building regulationsNormally a specification of relevant requirements concerning fire resistance and reaction tofire, sound insulation performance, thermal insulation performance and ventilation provisionsshall be elaborated for each delivery as a basis for the production of a kit.

The design process (including the approval of detailed plans, applications for planningpermissions, building permits, etc.) shall comply with the procedures foreseen in the Member States in which the building is to be built. An ETA for a concrete frame building kit does notamend this process in any way.

7.2.2. Structural designFor each individual building project a structural design should be made. This structural designshall confirm that the structure of the building complies with the essential requirements 1, 2and 6 as meant in chapter 6.

The structural design shall include specifications of any wind load anchors, welding and other supplementary structural works when these are not a part of the kit, but are essential for thefitness in use of the kit in the works.

The completed building (the works) shall comply with the building regulations (regulations onthe works) applicable in the Member States in which the building is to be constructed. The

procedures foreseen in the Member State for demonstrating compliance with the buildingregulations shall also be followed by the entity held responsible for this act. An ETA for aconcrete frame building kit does not amend this process in any way.

7.2.3. SubstructureThe maximum required tolerances of the substructure dimensions, levelling and permitteddifferential settlement of the foundation should be assessed for the concrete frame building kit,and be specified in the ETA.Requirements concerning damp-proof membranes or other protection against moisture fromthe substructure shall be specified.

7.2.4. Ventilation and heatingBuildings shall be assumed to be designed to have adequate ventilation rates and heating inrelation to the intended use.

7.3. TRANSPORT, STORAGE

A manual for the transport and storage of the building kit shall be available from the ETAholder. The manual shall in particular cover requirements concerning handling equipment andtransportation systems, and means and requirements for protecting the kit from weather exposure and mechanical damage during transportation. Reference to the manual shall bemade in the ETA.


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ETAG 2438

7.4. EXECUTION OF WORKS

General instruction for the installation of the kit in the works shall be available from the ETAholder. The instruction shall cover all important aspects related to the site work, such as: erection techniques and necessary equipment; temporary bracing and weather protection; completion of joints between kit components (structural fixing, welding, weather sealing

etc.); fixing of wind anchorage and any seismic anchorage to the substructure and betweenbuilding parts;

additional materials and components, including roofs and cladding where relevant, appliedon the site, and which are a precondition for the fitness of the assembled kit.

The requirements in EN 1090 should be taken in account when applicable.

As a supplement to the general instructions, specific instructions which contain specialaspects related to each individual building project (e.g. special crane requirements, hoistingstrap positions, etc) should normally be required. Reference to the instructions for installationof the kit shall be made in the ETA.

The completed building (the works) shall comply with the building regulations (regulations onthe works) applicable in the Member States in which the building is to be constructed. Theprocedures foreseen in the Member State for demonstrating compliance with the buildingregulations shall also be followed by the entity held responsible for this act. An ETA for aconcrete frame building kit does not amend this process in any way.

7.5. MAINTENANCE AND REPAIR

It is normally assumed that regular maintenance will be required to retain performance and toobtain the estimated working life of the building. The type and frequency of such maintenanceshall be specified, and shall be part of the assessment of the kit.


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ETAG 2439

SECTION THREE: ATTESTATION OF CONFORMITY (AC)

8. EVALUATION AND ATTESTATION OF CONFORMITY AND CE MARKING

8.1. SYSTEM OF ATTESTION OF CONFORMITY

According to the decision 2003/728/EC of the European Commission the system(s) of attestation of conformity given in Table 4 applies.

Table 4 System of attestation of conformity applicable to concrete frame building kits

Product(s) Intended use(s) Level(s) or class(es) Attestation of conformity system(s)

Concrete framebuilding kits

In Building Works Any 1

The system of attestation of conformity referred to above is defined as follows:

System 1: Certification of the conformity of the product by a notified certification body on thebasis of:(a) Tasks for the manufacturer:

(1) factory production control;

(2) further testing of samples taken at the factory by the manufacturer in accordance witha prescribed test plan;

(b) Tasks for the notified body:

(3) initial typetesting of the product;(4) initial inspection of factory and of factory production control;

(5) continuous surveillance, assessment and approval of factory production control.

Note: In addition, in the case of system 1 of attestation of conformity, the manufacturer shallmake a declaration of conformity of the product.

8.2. TASKS AND RESPONSIBILITIES OF THE MANUFACTURER AND NOTIFIED

BODIES

8.2.1. Tasks for the manufacturer- control plan for FPC Concrete frame building kits may be manufactured using a wide variety of materials anddesign approaches. It is therefore not possible to prescribe exactly the actions to beundertaken by the manufacturer of concrete frame building kits for FPC in the procedure of attestation. Table 5 shows an example of a control plan with the corner stones for a concreteframe building kit. It is for the Approval Body and the ETA applicant to agree a control plan for the type of concrete frame building kits under consideration. The objective is to ensure, bydirect or indirect methods, that the product specification remains unchanged from that coveredby the ETA, allowing for normal tolerances on material properties and manufacturingprocesses and that the performance of the concrete frame building kits is consistent with theETA holders declaration, in relation to all the applicable essential requirements.


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ETAG 2440

Table 5 - Control plan with the corner stones for the manufacturer of the concrete framebuilding kit

Subject/typeof control

Test or control method Criteria, if any Minimumnumber of samples

Minimum frequency of control

Factory production control (FPC)[including testing of samples in accordance with a prescribed test plan]

Laboratory and measurement equipment

Equipment Calibrating Manufacturer declaredaccuracy

- - On (re)installation- After major repair - Once per year

Production equipmentWeighing or volumetricbatchingequipment

Visual inspection Correctfunctioning

- Daily

Calibrating Manufacturer declaredaccuracy

- - On (re)installation- After major repair - Weighting:once per

year - Volumetric: twice a

year - In case of doubt

Prestressingequipment


- Daily

Calibrating Manufacturer declaredaccuracy

- - On (re)installation- After major repair - Weighting:once per

year - Volumetric: twice a

year - In case of doubt

Other productionequipment


- Weekly

Incoming material / componentsAll materials Inspection prior to

discharge of deliveryticket and/or label on thepackage showingcompliance with the order

Conformiywith the order

- Each delivery

Allcomponents

Inspection prior todischarge of deliveryticket and/or label on thepackage showingcompliance with the order

Conformiywith the order

- Each delivery

Process inspectionProduction of materials

Appropriate method ETA holdersdeclaration

- Depending on materialand /or process

Production of components

- Type- Quality-

ETAG024 Draft 2006 January

Documents

Transcript of ETAG024 Draft 2006 January